Blisters under the tongue are commonly seen as cysts of the sublingual gland, and may also be oral herpes simplex or vascular malformations.
1. Blisters under the tongue are often seen in sublingual gland cysts, which are caused by inflammation of the salivary glands themselves, and are most common in adolescents and young adults, due to poor oral hygiene, food debris and other injuries to the salivary gland ducts, inflammation induced cysts. The cysts are prone to rupture and discharge a thick, egg-white fluid.
Oral herpes simplex can also appear as sublingual blisters when it progresses to the blister stage. Ulcers appear after rupture.
2. Vascular malformations occurring at the base of the tongue can also be mistaken for blisters when mucosal protrusions occur.
3. Blisters under the tongue are mostly seen in the above cases. Sublingual gland cysts are prone to recurrence, and excision of the sublingual gland is the radical treatment for sublingual gland cysts. If necessary, you need to go to the stomatology department of the hospital.